/*
 * Copyright Matt Palmer 2012-13, All rights reserved.
 *
 * This code is licensed under a standard 3-clause BSD license:
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice, 
 *    this list of conditions and the following disclaimer.
 * 
 *  * Redistributions in binary form must reproduce the above copyright notice, 
 *    this list of conditions and the following disclaimer in the documentation 
 *    and/or other materials provided with the distribution.
 * 
 *  * The names of its contributors may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.
 */

package net.byteseek.compiler.matcher;

import net.byteseek.compiler.Optimiser;
import net.byteseek.matcher.sequence.SequenceMatcher;

public class SequenceMatcherOptimiser implements Optimiser<SequenceMatcher> {

	public static final Optimiser<SequenceMatcher> SEQUENCE_OPTIMISER = new SequenceMatcherOptimiser();
	
	@Override
	public SequenceMatcher optimise(final SequenceMatcher toOptimise) {
    	// If there's only one sequence, then just return it:
		
    	//TODO: optimise sequences - collapse runs of single bytes into ByteArrayMatchers,
    	//                           and runs of sequences of length one into 
    	//                           ByteMatcherArrayMatchers.
    	
    	// Last resort - just return the original object passed in.
    	return toOptimise;
	}

}
